True story of two male penguins at NYC's Central Park Zoo who become a couple, are given an egg to hatch by the zookeeper, and parent a penguin named Tango. Banned from some school libraries for its "homosexual-lifestyle" content.

Story of a high school girl who falls in love and has eventually sex with her boyfriend. Banned from some school libraries because of its depiction of high school sex as "normal," and because the girl visits a clinic to get birth control.

Story of a future society in which books are burned because they inspire independent thinking. Ironically, in the years after the book was written, Ballantine Books, fearful of contaminating young readers, censored 75 separate sections of the novel, mostly those that used the words "hell" and "damn."